Performance air intake?
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Performance air intake?
Do those performance air intakes really add HP? 
K&N, for example, say I will get 15.46 more HP in my 2008 F-150 5.4 litre motor.
A friend of mine says he put one in his Dodge Ram and didn't notice and increase in power.
K&N, for example, say I will get 15.46 more HP in my 2008 F-150 5.4 litre motor.
A friend of mine says he put one in his Dodge Ram and didn't notice and increase in power.
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bad2006z71
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Aug 10, 2011 08:21 PM